A student prepared a sugar solution containing 1.4382 g of sugar (C12H22011, 342.29 g/mol) in 5.00 mL of water and collected the following freezing point data. What is the Kf of water based on the student's data? Freezing Point of Pure Water 25 20 10 10 20 30 40 50 60 70 80 90 100 110 120 time (seconds)

Q: A solution is prepared by dissolving 4.39 g of ordinary sugar (sucrose, C12H011, molecular weight =…

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Q: When 14.3 g of a certain molecular compound X are dissolved in  85.0 g of benzene C6H6, the…

A: The depression in the freezing point refers to a phenomenon which is used to describe the effect of…

Q: When 257. mg of a certain molecular compound X are dissolved in 70.0 g of cyclohexane (C,H,2), the…

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Q: An aqueous antifreeze solution is 40.0% ethylene glycol () by mass. The density of the solution is…

A: Given data is as follows: 40 % ethylene glycol means as follows: The mass of ethylene glycol = 40 g…

Q: The molal elevation constant for water is 0.512°C kg mol–. When 0.5 mole of sugar is dissolved in…

A: Boiling point is the point at which the vapour pressure of a solvent becomes equal to the…

Q: An aqueous solution contains 20% by mass MgCl2 (MW=95.21 g/mole), if the density is 1.25 g/ml, what…

A: Given data contains, Density = 1.25 g/mL  % by mass = 20%  Kf = 1.86 K/m

Q: A student prepared a sugar solution containing 1.3658 g of sugar (C12H22O11) in 25.00 mL of water,…

A: Colligative properties are those properties that depend on moles of non-volatile solute present in…

Q: 1.20 mol of a nonvolatile, nonelectrolyte hydrocarbon is dissolved in 1,115.7 g of benzene. What is…

A: Elevation in Boiling point is the rise in the boiling point of the solution on addition of solute to…

Q: (a) Using the data from the table, determine the molality of the deicer solution. molality =  m…

A: Given  mass of CaCl2 = 9.57 g  Volume of water = 58.6 mL  = 58.6 g Convert grams to kg using…

Q: Calculate the molality of a solution prepared by dissolving 15 grams of ethylene glycol (HOCH2CH2OH)…

A: Molality - it is a concentration term in which the number of moles of solutes are dissolved in 1kg…

Q: A glucose solution contains 53.8 g of glucose (molar mass = 180.18 g/mol) in 455 g of water. Given a…

A: Depression in freezing point is given by the relationship: ∆Tf=Kf.m…

Q: Greg needs to determine the freezing point depression of 35 mL of 0.25 m AlCl3  solution. Greg…

A: The correct answer has to be given.

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: Given: Freezing point of pure water = 0.0°C Freezing point of the solution = -8.8°C Mass of water =…

Q: In the lab, a student follows the following steps to determine the freezing point and molality of a…

A: (a) Given: Mass of deicer = 6.56 g Volume of water = 58.6 mL  (As, mass (g) = Volume (mL)Density…

Q: aqueous solution containing 34.9 g of an unknown molecular (non-electrolyte) compound in 153.7 g of…

A: Weight of non - electrolyte = 34.9 gm Weight of water = 153.7 gm = 0.1537 kg (1kg = 1000g) Freezing…

Q: Assuming ideal solution behavior, what is the boiling point of a solution of NaCl in water if the…

A: i = 2 for NaCl as it is a strong electrolyte. ∆Tf = i×Kf×m 0.93 = 2×1.86×m             equation 1…

Q: A biochemical engineer isolates a bacterial gene fragment and dissolves a 10.0-mg sample in enough…

A: Mass of bacterial gene fragment = 10 mg  1 mg = 10-3 g  Mass of bacterial gene fragment = (10 ×…

Q: What is the boiling point of a solution made using 843 gg of sucrose, C12H22O11C12H22O11, in 0.300…

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Q: Exactly 8.20 g of naphthalene (MW = 128.17 g/mol) is dissolved in 200 grams of a certain nonpolar…

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Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: In this question, we want to determine the mass of of ethylene glycol in grams unit.  You can see…

Q: You are analyzing 225 g of a solution that contains 17.3 g of the ionic compound NaOH in ethanol.…

A: the freezing point of this solution can be calculated as: ΔTf = i * Kf* m where ΔTf =Tof- Tf  i=…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

A: Freezing-point depression is the decrease of the freezing point of a solvent on the addition of a…

Q: Given the following mixture of two compounds 45.00 mL of X (MW =90.00 g/mol)(density 0.809 g/mL) and…

A: In order to calculate the new freezing point of the solution we first write down the given data:…

Q: Given the following mixture of two compounds 65.00 mL of X (MW =82.00 g/mol)(density 0.808 g/mL) and…

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Q: What is the freezing point, if 25.0 grams of MgCl2 is mixed with 300.0 grams of water?

A: Given : mass of MgCl2 = 25 g              Mass of water = 300 g  = 0.3 kg

Q: a) What is the freezing point depression caused by adding NaCl to the water? b) The freezing point…

A: Concept introduction: When a non-volatile solute is added to a pure solvent freezing point of the…

Q: The molal freezing point depression constant =Kf·7.96°C·kgmol−1 for a certain substance X. When…

A: Answer: We will calculate the depression in freezing point using following formula:…

Q: (a) What is van’t Hoff factor? What possible values can it have if the solute molecules undergo…

A: Van't Hoff introduced a factor " i " called Van't Hoff factor for the extent of association and…

Q: In the lab, a student follows the following steps to determine the freezing point and molality of a…

A:

Q: Calculate and enter the freezing point depression of a solution of 78.4 g ethylene glycol (C2H6O2)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Assuming 100% dissociation, calculate the freezing point (?f) and boiling point (?b) of 2.30 ?…

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Q: You have a 10.40-g mixture of table sugar (C 12H 22O 11) and table salt (NaCl). When this mixture is…

A: Given mass of mixture = 10.40 g Mass of water = 150 g Freezing point = -2.24°C some standard values…

Q: Which substance of the following will dissolve in 100 g of water to show the greatest freezing point…

A: The freezing point is the temperature at which the solution freezes. The freezing point of the pure…

Q: Exactly 8.20 g of naphthalene (MW = 128.17 g/mol) is dissolved in 200 grams of a certain nonpolar…

A: Given data: The mass of naphthalene is 8.20 g. The mass of solvent is 200 g=0.2 kg. The molecular…

Q: Why does the concept of colligative properties apply only to dilute solutions? Eugenol is the active…

A: 1. Answer. : Colligative properties are properties of solutions that depend on the number of…

Q: What is the freezing point of a solution with 7.53 g of n-propanol (C3H8O) dissolved in 100.0 mL of…

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Q: When 2.01 g of a certain molecular compound X are dissolved in 50.0 g of benzene (C₂H₂), the…

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Q: Calculate Boiling Point Elavation anf Freezing Point Depression Ethylene glycol (EG), C2H6O2 , is a…

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Q: When 30.8 g of a certain molecular compound X are dissolved in 85. g of benzene (C H), the freezing…

A: The given data contains, mass of X =30.8 g mass of benzene = 85 g Freezing point of the solution…

Q: Calculate the molarity of a solution that contains 126.8 g NaCl in 2.800 L of water.

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Given the following mixture of two compounds 45.00 mL of X (MW =90.00 g/mol)(density 0.809 g/mL) and…

A: X Compound: Volume = 45.00 mL Molecular weight = 90.00 g/mol Density = 0.809 g/mL Y Compound:…

Q: Given the following mixture of two compounds 45.00 mL of X (MW =80.00 g/mol)(density 0.893 g/mL) and…

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Q: 3.9 g of benzoic acid dissolved in 49 g of benzene shows a depression in freezing point of 1.62 K.…

A: Given : mass of benzoic acid = 3.9 g Mass of benzene = 49 g = 0.049 Kg…

Q: Trial 1 Freezing temperature of deionized water 0.02 ° C Deicer used (chemical formula) KCl Mass of…

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Q: A solution is prepared by dissolving 8.215 g of an unknown pure nonvolatile compound in 300.0 g of…

A: Given: Mass of compound (solute) = 8.215 g Mass of benzene (solvent) = 300.0 g Freezing point of…

Q: Q3. Calculate the freezing point of the solution; if 40.0 g NaCl is dissolved in 225 g water. (Kf…

A: The temperature at which any solution solidify is called the freezing point of the solution. When a…

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